Changeable indicator



1;. HUTCHINSON. CHANGEABLE INDICATOR. APPLICATION FILED DEC, 4 l9l7.

1,345,675. Patented My fi, 192m 5 SHEETSSHEEI I.

LACKAWANNAUMHEU MT. MORRIS h DANSVILLE J. HUTCHINSON. CHANGEABLE INDICATOR.

. APPLICATION FILED DEC 4, I9IT 1,34%675 P tented JIuIy fi, IIH ZII U 5 SHEETS-SHEET 2.

awning J. HUTCHINSON.

CHANGEABLE INDICATOR.

APPLICATION FILED DEC,'4. 191?.

J. HUTCHINSON.

CHANGEABLE INDICATOR.

APPLICATION FILED DEC. 4. 1912.

Patented July 9 mm.

5 SHEETS-SHEET 4 glwuawtmz L HUTCHINSON.

CHANGEABLE INDICATOR.

APPLICATION EILED DEC. 4, 1917.

Patented July 9 mm 5 SHEETS-SHEET 5.

be raised or lowered, the lighting for this data being illustrated as provided by an attachment secured to the outside of the upper extension of the apparatus; and i Fig. 14 represents a fragmentary view enlarged of the sectional portion illustrated in Fig. 12.

Fig. 15 is a sectional view taken on line 15 15 of Fig. 1;

Fig. 16 is an enlarged view of a portion of the curtain end showing the eyelet for the reception of the hook on the chain;

Fig. 17 is an enlarged side view illustrating the relative position of the hook with the curtain in position thereon and showing how the end of the hook is covered by the time card rack.

Like numerals refer to like parts throughout the drawings.

Referring in detail to the structure shown in Figs. 1 and 2, 1 represents the main supporting uprights at the side of the apparatus. 2 indicates an ornamental finishing strip on the front face of the structure and it will be observed that the lower portion of the strip 2 is separated from the upper portion and is mounted on hinges 3 to swing from the closed position against the face of the apparatus to the open position as indicated in Fig. 2. l represents pivotally mounted doors or panels extending the full front width of the machine and adapted to provide supporting racks 5 for the storage of rollers 6 bearing the station list data. The doors 4: are so mounted that the weight of the rolls or the weight of the racks is sufiicient to hold the door in the closed position by means of the weight of the rolls being swung past the pivot point. Likewise, the door is adapted to remain in the open position by reason of the fact that it is pivoted at a point nearer the base of the door than the upper side thereof. .ikbove the topmost door 4: is a narrow door 7 pivoted along its lower edge by the hinges 8 and adapted to open for the insertion of one of the rollers Ginto the apna'atus as will be hereinafter described.

The entire assembly of the indicator is adapted to display the necessary track number data at the top of the structure in addition to the traveling card time display rack which is adapted to move in conjunction with the curtain carrying the station list data. in the constructions indicated the track number data is shown as located in an angular extension projecting forwardly at the top of the apparatus so that the data may be seen from either side of the structure. The projecting housing for the track number data is indicated by the numeral 9. lVithin the projection 9 is located the necessary means for illumination as indicated by the lamp 10 located behind the track number data and also the lamp 11 having the reflector adapted to project the light downwardly upon the time card'rack and station list cur tain. This reflector is preferably rigidly attached to the projection 9 and is indicated by the numeral 12.

The operating apparatus provided for the movement of the display parts of the Stilllt. tnre will be understood from the following description. it the top of the structure is a cross frame member 13 and innuediately below the frame member 13 is a rotatable, horizontal shaft member l-l adjnstahly connected at either end to the frame member 13 by the screw-thremled rods 1:") having suitable fastening nuts 16. The ends of the shaft member l-l are provided with collars 17 adapted to hold the shaft .l-lin proper position in the bearings 18 provided at the lower end of the screw-threaded rods 15. Iln the lower part of the apparalais. about oppo site the door 7, and within convenient reach of the operator there is a horizontal rollcr if) mounted in supportinp bearings 20 located at the sides of the apparatus. The roller 11) is provided with the sprocket wheels 22 rigidly connected thereto and adapted to drive an endless chain member 23 which ex tends around the s n'ocket wheels 22, upwardly, and over corresponding sprocket wheels 2% which are rigidly secured to the cross shaft i l. In the form illustrated in Figs. 1 2, 3, and -ltwo endless chains are provided and these chains are adapted to carry fastened thereto a display time card rack and the curtain carrying the station list data. and also the l alancc-weight as will be hereinafter described.

Referrin in detail to the time card display rack illustrated in Figs. l 'l. it will be seen that a cross yoke member 25 is cured to the chain members 23 to be moved up and down according to the lllOVtIl'ltllll of the chain and that the cross yoke member is positioned. laterally by means of its end extensions 26 being adapted to slide on the guideway 2. ewtending: vertically at either side of the structure. The time card rack 28 is pivotally attached at its upper edge to the cross yoke member 2.7 by the hinge members 25). .Tmmcdiatcly behind the time card rack 28 is a hook men'ibcr 30 secured to each of the chains 23 and adapted to rw ceive the end of the station list curtain 3 and to lift the same into the display posi tion. The present a 'iparatus provides for the placing of the books 30 behind the time card rack 23 and po itioned near the top of the latter. Movement of the time card rack by swinging the lower end 'lorwardly and upwardly uncovers the books so as to allow the attachment of the end of the display curtain on the same and when the display rack is swung back into its normal position it comes into contact with the ends of the hooks 30 to effectively prevent the dislodg- Ill) int

inept ot the end of the display curtain troin the hooks. This an important feature necessaryin the increment oi? the curtain into the display position and also during the lor vertingoi the curtain to he wound on the au'tain roll The chains 23 hang from the upper sprocket wheels 2t and substantially vertically trout either side of said sprockets .z'lt balance-weight 31 is securely 'l'astened to the chains 23 on the side of the BPl'UUlWll wheels 2t opposite to the display rack 'llhe weight Til is designed to substantially balance the weight of the display racirand the weight ot the display curtain so as to reduce the ellort necessary in the operation oi? the machine.

lle'lerring in detail to the structure adj acent the roller 19 it will be observed that this roller is provided with cylindrical portions it)" having a dian'ieter as great as the sprocket wheels pose ot protecting the surface and material ot' the display curtain from tentact with the end of the sprocket teeth during the increment oi the curtain. At either side oi the entire SlZ-l'l'lCtllIQ are supporting hearin r ineniherssi having the bearings :20 in their upper portion. to receive the ends at the roller .19. it t eachend ot the roller 19, is a heveled near 1.9 adapted to mesh with corresponding heveled gears lfi inountcd in the upper portion oi? the members 82. tltuh slurl ts tlil are connected to the gears 19 and are adapted to he turned icy any suitable harnllm not shown, so as to operate the roller ll) and gears 22 to elevate the reel: 28 and the hooks 50 llnnnediately helow the roller 19 and mounted in the members 32 are the gears ti t of the spur type which are rigidly Fat-stoned to a shaft carrying the disks 36 adapted to receive the ends ot the curtain rollers, The dislts are provided with the cross slots 37 which provide the opeuin tor the rereption ot the ends oi? the rollers as will he descrihml. lnunediatelt hehind the gears 3- 1: are correspondiug spur nears which are in mesh with the gears B l: and wl Icl are rigidly mounted on. a cross shalt Th) jourrmled at either end in the hloclt incinhcrs 3-32 lliuidly keyed to the shatt 39 are the two driuns it) to which are attached steel tape lri which is adorned to he wound. on the drann, This tape 41. eittends upwardly to the ll-til oi the entire apparatus and passes er or a pulley 41:91 which is carried by the c oss trainer nieinher will and front the pulley l the tree end oi the tape hangs down is provided with a tension a i-mi'rinzr in detail to the roller indicated "hv s in l r-rs. and i and which is illustrated in detail in l ig. 'i', and which is adapted to car "1 the curtain hearing the stature list datai l-(l represents the main cirlindrical part oil the roller having a central 1 extend throi this being for the purwhich ordinaril here at either end indicated by the numeral 4h"). a. plate inenilmr i6 is :ulaptcd to lit over the end oi the here 4:5 and have its t3);- tcnsion n" project into the here tor a short distance. it set screw 418 extends through the end. wall oil the pa. .ll: and securely tastens the plate iorinhe 6 over the end of the roller. its series o t small openings 4:9 are provided around the surface oil? the plate nieinher do and are adapted to receive a pin 50 projecting"From the end block 51 which is adapted to be inserted into the openings 3'? 'llhie hlocl: inen'ihcr t provided with a shanlr 553 which is adapted to h a central opening; 4-6 in the plate mend it) and project into the hore 41-.5 where a, spring ii -l is adapted to he toned to the end or the same and to be compressed when. the shank uiemliier 52 is drawn through the plate member 416. llhe necessity of adjusting the hloclt 51 on the end oi the roller is caused by the fact that the length of the cin'tains vary and that the picltup rod on the end of the curtain inust hang}; in the proper position to he lifted and placed on the hooks 30. drawing out the hloelr and removing the pin from the opening th the curtain may he wound up or unwound with respect to the hlocl: 51. in order to taire up the slack in the curtain.

lit the operation ot the apparatus a roller 6 is inserted through the spare uncovered hy the door 7 and the end hloclei ot the roller are slipped into the receiving openings 37 and at the same time the wa not shown, in the end of the curtain hooked ove the hooks -ifl which are nncovered when the time card raclr 95% is hit ed. l fhen the stub shatt is turned. the Q'mirs 19 and i9 operate to lift the curtain and the display raei-e [it the s-une time the tanning movement oi the role,

turns the disks 36 and through the gears 34; and 3d wind up the steel. tape on the driuns 4h), thus eleratino the weight 4?. .ln ap mratus heretofore in use it hm hecn customary to use curtain rollers ha inn; springs adapted to provide the tension on the curtain such as would. he ne er to ltcep the curtaii'i taut and to provide necessary il orce towind up the rurtain on the roller when the curtain is lowered tilpring rollers have prored iinsatistactoi v hecause ot the tact that aconstant tension was not provided The pre nit invention provides tor this constant tension by the use oi the apparatus herein described which is not limited by springs or other apparatus v is in need or": constant attentio'r't The stub shafts 2 provided with any convenient pawl and ratchet conihination 33" such as may he necessary to hold the stub shaft in any particular posi tion.

Referring in detail to the structure shown it ii in Figs. 8 and 9 it will be observed that a single drive chain .43 is used and that the display rack and its balance-weight are thistened at the opposite ends of additional chains 23? which are hung over sprocket members located on the cross shalt 1 1. In this case there is but a single hook 230 which is provided on the chain 2 3 in the middle of the structure.

Referring to Figs. 10 and 11, it will be observed tha these views illustrate a modification in which the cage carrying the track number is fastened to the endless chain 23 and is adapted to be moved up or down as is necessary in the changing of the track munber data.

in F 12 is shown a sectional view of the construction taken on line 12l2 of Fig. 10. Fig. 1% is an enlarged fragmentary view of F 12. These views illustrate the position of the guide strip member 2'? as constituting the slidable mouutii'ig for the time card rack and the track number cage.

In Fig. 13 the track number cage is illu trated as providing also space for the time card rack and in this instance the display rack is not needed below the cage as is the case in the form illustrated in Figs. ll? and 11. In the form shown in Fig. 13 the lighting for the station curtain is shown as'provided by a lamp attached to the im-- mediate tront oi the projection 9. It will be noted that the arrangement of lighting is dillerent in the form shown in Fig. 1.3 from that shown in Fig. 10 in which latter the cage is adapted to be moved up or down without interfering with the lighting means which latter is adapted to pro ect into the rear of the cage from the supporting mom leer carrying the lamp bracket One of the important features of the invention is to be found in the construction of the indicator and in the particular manner in which the construction provides for the covering of the interior of the structure to hide the space behind the chains 23. The invention provides for vertica tions 54-, shown as three in number, extendincr from the top of. the structure to the bottom of the track curtain display space. The panels 54 are mounted in the same vertical plane with the chains and fill the space between the chains and between the chains'and the side walls of the structure. The hooks 30 and the cross yoke member 25 with the time card rack are mounted on the chains 23 and positioned to move immediately in front of the panel sections Fig. 1 illustrates the panels 54 and the position of the chains between the panels. Figs. 12 and 14. show the panels constructed of three ply veneer and fastened to a cross brace member 55 by means of screws 56. These sectional views illustrate also the panel secchains 23 positioned between the panel sections 54;. 57 indicates an angle corner plate member to brace the membe' 55.

Fig. i5 represents a sectional view taken on line 15-15 of Fig. l and shows the panels 1% in position and lastcncd to a cross brace member 5.7. The rear all ol' the structure is indicated at 58 and the trout finishing strip at 2. The panels are illustrat ."l as of wood but this constriu-tiou may be substituted by sheet metal or wall borcd with all complicatml mechanism involving the use of springs or clockwork. Also it will be observed that the moving parts are sulistautially balanced and that but little power need be exercised in order to opcral e the stub shacl'ts to move the apparatus.

. Change in size and shape ol the parls as well as in the material of construction mav be made without departing from the scope of the invention.

lvhat I claim is:-

1. la a changeable indicator, a frame. an upper rotatable member mounted on said me, a lower rotatable member mounted on 'l'rame and below said upper rotatable member, an flexible connection pass cnoless ing over said upper and said lowcr rotatable men'ibc-rs and extending bctwccu thc samc. a. traveling display device mounted on said flexibleconnection. :.balaucewcighl mouulcd on said llcviblc connection on the opposite side of said rotatablc members from said display device, and means to transmit power to one of said rotatable members to move said flexible connection.

Q. In a changcable imlicator. a frame. an upper rotatable member mounl'cd on said frame, a lower rotatable member mounted on said frame and, below said upper rotatable member, an endless. flexible connection passing over said upper and said lower rotatalJ-le members and extending bctwccu the same, a traveling display device mounted on said flexible connection. a balance wcight mounted on said flexible conncctiou on the opposite side of said rotatable members from said display device, means to transmit power to one of said rotatable members to move said flexible connection curtain cud supion llll) llll l ti

till

ii iii was porting meanscarried by said lieirible conncctn i, and a display curtain adapted to entlitlill' ittlil end supporting means,

till in member, an endless lleri coniuaztion passing over said upper and said lower rotatable members and @Iii'tttlli a; between the same, a traveling display devi'e mounted on said 'llesible coinuaztion, a balance weight mounted on said flexible connection on the opposite sale oi? said rotatable members from said display device, metals to transmit power to one ol" said rotatable members to more said 'l'lexiiainnection, curtain end supporting adapted to moved by said lleiizible connection and located to the rear of said traveling display device, and a display curtain adapted to engage said curtain end supporting means.

st, in a changeable indicator, a frame, an upper rotatable member mounted on said e, a lower rotatable member mounted l frame and below said upper rotatable moi oer, an endless lleirible connection passili Li ing over said upperand said lower rotatable members and ezoiending between the same, a tr ve ling display device mounted on said i crude connection, a balance weight mounted on said ller ble connection on the opposite side ct said rotatable members from said d'splay device, means to transmit power to one oit said rotatable members to more said tic tible coni'iection, curtain end supporting means adapted to be moved by said flexible connection and located to the rear-oi" and adjacent the top oi. said traveling display device, and a display curtain adapted to engage said curtain end sup porting means.

in a changeable indicator, a frame, an .Jer rotatable member mounted on said u *e, a lower rotatable member mounted on said frame and below said upper rotatable member, an endless flexible connection passing over said upper and said lower rotatable niei. bers and extending between the same, a trawling display device miiiunted on said ileuible connection, a balance weight mounted on said Horrible connection on the opposite side oi? said rotatable members from said display device, means to transmit power to one at said rot table members to move said flexible connection, curtain end supporting means carried by said flexible connection, a curtain roller mounted below said. lower rotatable member, and a display curtain relied upon said curtain roller and having the outer end projecting from the lower side of said curtain roller and upwardly parallel to said flexible connectioiti and extending over the front surface thereof to engage said curtain end sup iorting means.

6. in a changeal'ile indicator, a frame, an

,ers

upper rotatable member mounted on said frame, a lower rotatable member mounted on said frame and below said upper rotatable member, an endless flexible connection pass ing o ver said upper and said lower rotatable members and extending between the same, a traveling display device mounted on said flexible connection, a balance weight mounted on said flexible connection on the opposite side oi said rotatable members from said display device, means to transmit power to one oi? said rotatable members to move said i'leitible connection, curtain end supporting means carried by said flexible connection, a curtain roller mounted pa 'allel with the axis oi said rotatable members, a display curtain mounted on said roller and adapted to en gage said curtain end supporting means, a tension weight, a reel member connected to said roller and adapted to be turned thereby, and a flexible weight connection extending trom said weight member and adapted to be wound on said reel member, the unwinding oi? said curtain from said roller serving to wind said weight connection on said reel and elevate said weight member.

7, :ln a changeable indicator, a frame, an upper rotatable member mounted on said frame, a lower rotatable member mounted on. said frame and below said upper rota table member, an endless flexible connection passing over said upper and lower rotatable members and extending between the same, a balance weight mounted on said flexible connection, curtain end supporting means carried by said flexible connection on the opposite side of said rotatable members from said weight, means to apply power to one of said rotatable members, a curtain roller mounted parallel with the axis of said rotatable members, a display cur 'ain mounted on said roller and adapted to engage said curtain. end supportingmeans, a reel member, a pi'in'iary gear rigidly mounted with respect to said roller, a secondary gear rigidly mounted with respect to said reel member and in mesh with said primary gear, a tension weight, and a flexible weight connection fastened to said weight and to said reel and adapted to be wound on said reel.

it. in a changeable indicator, a frame, an upper rijitatablemember mounted on said trains, a lower rotatable member mounted on said frame and below said upper rotatable member, an endless flexible connection passing over said upper and lower rotatable members and extending between the same, urtain end supporting means carried by said flexible connection, means to apply power to one of said rotatable members, a curtain roller mounted parallel. with the axis oil said rotatable members, a display curtain mounted on said roller and adapted to engage said :urtain cud supporting frame, a lower rotatable member mounted on said frame and below said upper rotatable member, an endless flexible connection passing, over said upper and lower rotatable members and extending between the same, curtain end supporting means carried by said flexible connection, means to apply power to one of said rotatable members, a curtain roller mounted parallel with the axis of said rotatable members, a display curtain-mounted on said roller and adapted to engage said curtain and. supporting means, a reel member mounted parallel with and behind said roller, a primary gear rigidly mounted with respect to said roller, a secondary roller rigidly mounted with respect to. said reel and in mesh with said primary gear, a pulley wheel located ad jacent said upper rotatable member, a tension weight located in the rear of said frame, and a flexible weight connection fastened to said weight and to said reel and adapted to be wound on said reel.

10. In a changeable indicator, :1 frame, an upper rotatable member mounted on said frame, a lower rotatable member mounted on said frame and below said upper rotatable member, an endless flexible connection passing; over said upper and lower rotatable members and extending between the same, curtain end supporting means carried by said flexible connection, means to apply power to one of said rotatable members, curtain roller end supporting means rotatably mounted with the ax s thereof parallel to the axis of upper and lower rotatable incinbers, a reel member, a primary ,qear rigidly mounted with respect to said roller end supporting means, a secondary gear rigidly mounted with respect to said reel and in mesh with said primary gear, a tension weight, and a flexible weight connection fas tened to said tension weight and to said reel and adapted to be wound on said reel.

11. In a changeable indicator, a frame, l rotatable member mounted on said frame, flexible connection passing over said rota table member and hanging from either side thereof, a traveling display device mounted on said flexible connection, a balance weight mounted on said flexible connection on the opposite side of said rotatable member from said display device and adapted to balance the weight of said display device, an d means to transmit power to said rotatable member to move said flexible connection.

I2. In a change: ble indicator, a frame, a rotatable member mounted on said frame a flexible connection passing over said rotutable member and hanging, from either side thereof, a traveling" display device mounted on said flexible connection, a balance weight mounted on said llexible connection on the opposite side of said rotatable member from said display device, means to transmit power to said rotatable member to move said flexible connection, a curtain roller mounted parallel with the axis of said rotatable member, a display curtain mounted on said roller, a tension weight, a reel mcnr ber connected to said roller and adapted to be turned thereby, and a llexible weight connection extending from said weight member and adapted to be wound on said recl member, unwinding of said curtain from said roller serving to wind said weight connection on said reel and elevate said wei ht member.

13. in a changeable indicator, :1 lrame, a rotatable member mounted on said frame. a lexible connection lmssillgg over said rota able member and hannin; from either side thereof, a traveling display device mounted on said flexible onnccl'ion, a balance weight mounted on said ilexible connection on the opposite side of said rotatable member from said display deyive, means to transmit power to said rotatable member to more said. flexible connection, a curtain roller mounted parallel with the axis of said rotatable member. a display curtain mounted on said roller. a real mnnber, :1 primary gear rigidly mounted with respect to said roller, a secondary gear rigidly mounted with respect to a: id reel member and in mesh with said primary gear, a tension weight, and a llc\ible weight conuevtion fastened to said weight and to said reel and adapted to be wound on said reel.

let. in z changeable indicator, a frame. a rotatable member mounted on said frame, a flexible connectio pissing over s d rotutabic member and hunp in r from ed ul' side thereof, a traveling; display device moulded on said flex ble connection. a balair e wcigrht mounted on said lexible connection on the opposite side of said rotatable member from said display dci'ii e, means to transmit power to said rotatable member to move said llcxjible connection. a curtain roller mounted parallel with the axis of said rotatable mcnp ber, a display curtain mounted on said roller, a reel member mounted parallel with and behind said roller, a primary year rigidly mounted yith respect to said roller, :1 sec ondary roller rigidly mounted with respect to said reel and in mesh with said prin'iary gear, a pulley wheel located iuljaccnt said iii ii iii rotate ill tl ii we gut rear oi said .tt'illllb, and a flexible voiillrielllirll tutened to said weight and to said priel are adapted to no wound on said. reel,

' la a changeable indicator, a frame, a

able in anbcr mounted on said :li'aine, a le lUllllUlllllUll passing over said. roe member and harming from either thereof, a tin cling disph y device liiouuted one-aid flexible connection, a balinue weight mounted on said flexible connection on the oppo ite side oi said rotatal'ile .ineniher :l'roin said display device, means to transmit power to said rotatable member to more said flexible connection, curtain roller end supporting means rotatably mounted with the axis thereof parallel to the axis ol said rotat ble n'iember, a reel member, a primary gear rigidly mounted with resp et to said roller end supporting; means, a -;ecoiular gear rigidly mounted with respect to said reel and in mesh with said primary gear, a tension weight, and a llexible weight connection fastened to said tension weight and to said reel and adapted to be wound on said reeli lo. ln a changeable irulicator, a, frame, an upper rotatable member mounted on said i none, a lower rotatable member mounted on said fl l'illlltl and below said upper rota tuble member, an'endless fl xible tonnection passing over said upper and. said lower rotatable members and extending between the some, guide means fastened to said frame, su )p .)rt members carried .l'leiiible connection, a balance mounted on said l'ltJXllJlG coni'iection on the opposite side of said rotatable members from said support members, a traveling cross :lrame adapted to be ptsitioned late 'ally by sai d i i do means a nd car ried by said :[lexible connection, a display device pivotally mounted on said cross tame, i'neans to transmit power to one oil: said rotatable members to move said lloxible COl'l'l'lBCtlOl'i, and a display curtain adapted to engage said sup port members.

ill". ln a changeuble iiulicator, a frame, an upper rotatable member mounted on said train a, a lower rotatable member mounted on said frame and below said upper rotatable member, an endless flexible connection passion; over said upper and said lower rotatable members and extending between the some, guide means tastenei'l to said 'lrame, suppijirt ll'ltlJ'lbOl'E-i carried by said flexible rmiinection, a bz'dance weight mounted on said. flexible connertion on the opposite side o'l said to tatable meiinbers from said support members, a t arelin jg cross frame adapted to be po i-iitioned laterally by said etude means and carried by id flexible connection, a display device pivotally mounted on said frame, means to transmit power to one of said to by said weig ht ta able members to move said flexible connection, and a display curtain :ulapted to engage said support members, said support members beinu; adapted to engage the r ar lane of said traveling display device to prevent the movement of said curtain from said support members.

lb. in a i'fliaugeable indicator, a train an upper rotatable member mounted on said trade, a lower rotatabli member mounted on said 'trame and. below said upper rotatable member, an endless llexible connection ptjSllll l; over said u iper and said lower rotatable inen'ibers and ertendingr betwe in the some, support means carried by said flexible eonneetion, a balance weight mounted on said .[lerib no connection on the opi'iosit side of said rotatable members troirn said su iport means, a cross lrame :arricd by said flexible eonnection, a trove inp; display device car-- ried by said cross "lrarne, means to tranal'nit power to one of said rotatal'ile members to move said. flexible connection, a curtain roller mounted parallel with the axis of said. rotatable members, a display curtain mounted on said. roller and aiilap'ted to engage said supporting means, a teni-iion weight, a reel member connected to said roller and adapted to betnrned thereby, and a flexible weight connection extending; from said weight member and adapted to be wound on said reel member, unwinding of said curtain from said roller by the movement oi said endless connection serving}; to wind said weight connection on said reel and elevate said weight member.

19. ln a changeable indicator, a frame, an upper rotatable member inountot on said frame, at lower rotatable member mounted on said it tune and below said upper rotatable member, an endless flexible connection passing over said upper and lower rotatable members and extending between the same a balance weight mounted on said llexible connecthm, curtain end si pliloltlllg means carried by said flexible connection on the op ioeite side olf said rotatable members from paid weight, means to apply power to one oi said rotatable members, a curtain roller inoliintid pa 'allcl with the axis o i said rotatable members, a display curtain mounted on said roller and adapted to engage said curtain end supporting means, a tfaveline cross frame adapted to be positioiiied laterally within said frame and carried by said flexible connection, a display device pivotally mounted on said cross traine, a reel member, a primary ,ejear rigidly mounteii with respect to said roller, a secondary pear fz'in idly llllil'll'lti-ll. with respect to said re l member and in mesh with said primary," grez-ir, tension weight, and a 'llexil'ile w l t (Ol'lllfiijtlfill t: stoned to said tension web, 1 and to said reel and adapted to be Wound on saidreeh Y frame, a lower rotatz-iblc 20. In a clangeable indicator, a frame, an upper rotatable member mounted on said member mounted on said frame and bsaid upper rotatable member, an en flexible connection gi assing over said upper and lower rotatable members and extending between the same, curtain d supporting means carried by said flexible connection, means to apply power to one of said rotatable members, guide means fa stoned to said frame, a travel ing cross frame adapted to be positioned laterally by said guide means and *arrseo by said flexible connection, a display device pivotally mounted on said cross frame, a curtain roller mounted parallel with the axis of said rotatable members, a display c rtain mounted on said roller and adapted to engage said curtain end supporting means. a reel member, a primary gear ri dly mounted with respect to said oller, a secondary gear rigidly mounted. .vith respect to said reel and in mesh with said primary gear, a tension weight, and a flexi le wei ht connection fastened to said weight and to said reel and adapted to be wound on said reel.

21. In a changeable indicator, a frame. an upper rotatable member mounted on said frame, a lower rotatable member mounted on said frame and below said upper rotatable member, an endless flexible connection passing over said upper and lower rotatable members and extending between the same, curtain end supporting means carried by said flexible connection means to apply power to one of. said rotatable members, guide means fastened. to said frame, a traveling cross frame adapted to be positionel laterally by said guide means and carried by said flexible connection, a display device pivotally mounted on said cross frame, a curtain roller mounted parallel with the axis of said rotatable members, a display curtain mounted on said roller and adapted to engage said curtain and supporting means, a reel member mounted parallel. with and behind said roller, a primary gear rigidly mounted with respect to said roller, a secondary roller rigidly mounted with respect to said reel and in mesh with said primary gear, a pulley wheel located adj acent said upper rotatable member, a tension weight located in the rear of said frame, and a flexible weight connection fastened to said weight and to said reel and adapted to be wound on said reel.

22. In a changeable indicator, a frame, an upper rotatable member mounted on said frame, a lower rotatable member mounted on said frame and below said upper rotata le member, an endless flexible connection passing over said upper and lower rotatable members and extending between the same, curtain end supporting means carried by said flexible connection, means to apply power to one of said rotatable members. guide means fastened to said frame, a traveling cross frame adapted to be positioned laterally by said guide means and carried by said flexible comicction, a display do vice pivotally mounted on said cross frame. curtain roller end supporting means rotatably mounted with the axis thereof parallel to the axis of upper and lower rotatable members, a reel member, a. primary gear rigidly mounted with respect to said roller end supporting means, a sccolulary gear rig idly mounted with respect to said reel and in mesh with said primary gear. a. tension weight, and a flexible weight coum-ctioo fastened to said tension weight and to said reel and adapted to be wound on said l'ccl.

In a changeable indicator, a frame, an upper rotatable member mounted on said frame, a lower rotatable member mounted on said frame and below said upper rotatable member, an endless flexible connection passing over said upper and said lower rotatable members and extending between the same, a second flexible connection passing over said upper rotatable member and hanging from either side thereof, a traveling display device mounted on said second flexible connection, a balance weight mounted on said second flexible connection on the opposite side of said upper rotatable member from said display device, and means to transmit power to one of said rotatable members to move said second llcxible connection.

In a changeable indicator, a frame, an upper rotatable member mounted on said frame, a lower rotatable member mounted on said frame and below said upper rotatable member, an endless flexible connection passing over said upper and said lower rotatable members and extcmling between the same, a second flexible connection passing over said upper rotatable member and hanging from either side thereof, guide means ri idly mounted with respect to said frame, a cross frame adapted to be positioned laterally by said guide means and carried by said second flexible connection, a traveling display device mounted on said second flexible connection and pivotally attached to said cross frame, a balance weight mounted on said second flexible connection on the opposite side of said upper rotatable member from said cross frame, and means to transmit power to one of said rotatable members to move said second flexible con nection.

24' In a changeable indicator, a frame, a traveling support member positioned to move in a fixed path, and fixed panel members extending across substantially all ol the space within said frame and being on each side of said support member, at least llll ltl

f Lll portion of said fixed path being in the same plane with one oi said panel members. 1%. ln a changeable indicator, a frame, an upper rotatable member mounted on said :trame, a lower rotatable member mounted on said frame and below said upper rotatable member, an endless flexible connection passing over said upper and said lower rotatable members andextending in a vertical path between the same, a fixed panel n'iember on each side 01 said flexible conncction, at least a portion oi the vertical path of said endless connection being in the same plane with said panel members, a traveling display device mounted on said flexible connection and positioned in front or said panel member, a balance weight mounted on said flexible connection on the opposite side of said rotatable memhere from said display device, and means to transmit power to one of said rotatable members to move said flexible connection,

27 it changeable indicator comprising a supporting frame, bearing members adja cent the top of said frame, bearing mem bers adjacent the lower end of said frame, sprockets mounted in conjunction with said bearing members, hook carrying chains on said sprockets, a fixed panel member mounted between said chains and substantially filling the space between the chains and between the chains and said frame member, the. path of travel of that portion of said chains carrying the hooks being in the plane of said panel members, a display curtain adapted for engagement with said hooks or said carrying; chains, a display device carried on said chains, and power means to move said chains, said display device and said curtain being adapted to move in a vertical plane over the face of said panel member.- 7

In testimony whereof l[ have hereunto set my hand,

JUB HUTGHINFaON, 

